Is CVE-2026-8740 in the CISA KEV catalog?

No. CVE-2026-8740 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-8740?

CVE-2026-8740 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2026-8740?

CVE-2026-8740 has an EPSS score of 0.23% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-8740?

No published fix for CVE-2026-8740 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-8740

MEDIUM

6.3

CVSS v3

NVD

Description

A flaw has been found in Sanluan PublicCMS 5.202506.d. The impacted element is the function execute of the file publiccms-core/src/main/java/com/publiccms/views/directive/tools/TemplateResultDirective.java of the component templateResult API. This manipulation of the argument templateContent causes improper neutralization of special elements used in a template engine. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CWE-791 CWE-1336

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

0.23%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-18.